Siphon attachment.



F. K. HYDE.

SIPHON ATTACHMENT. APPLICATION FILED Aue.3|. 1914.

'1, 1 3?,488, Patented Apr. 27, 1915.

mnmssss mm/ 100 W 6% Frmzczis'lfigyde THE NORRI: Fumes Co.. PHOTO-LITHO., WASHINGTON. D. C

FRANCIS K. HYDE, OF NEW YORK, N. Y.

SIPHON ATTACHMENT.

Specification of Letters Patent.

Patented Apr. 2'7, 1915.

Application filed August 31, 1914. Serial No. 859,321.

To all whom it may concern:

Be it known that I, F RANOIS K. HYDE, a citizen of the United States, and a resident of the city, county, and State of New York, have invented certain new and useful Improvements in Siphon Attachments, of which the following is a specification.

This invention relates to certain improvements in siphon attachments, and more especially in that class of such devices which are particularly designed and adapted, when used, for example, in connection with plumbing systems, and the like, for operation in a substantially automatic way upon the breakage of the seals of the traps of such systems, to deliver a limited supply of water to reestablish the same, and the object of the invention is to provide a device of this general character, of a simple and comparatively inexpensive nature and of a compact and durable construction having novel and improved siphoning means whereby untimely interruption of the siphoning action is prevented and the delivery of the requisite water supply is assured.

The invention consists in certain novel features of the construction, and combinations and arrangements of the several parts of the improved siphon attachment, whereby certain important advantages are attained, and the device is rendered simpler, less expensive and otherwise better adapted and more convenient and effective for use, all as will be hereinafter fully set forth.

The novel features of the invention will be carefully defined in the claim.

In order that my improvements may be the better understood, I will now proceed to describe the invention with reference to the accompanying drawing, wherein I have illustrated a sectional view taken vertically and centrally through a siphon attachment embodying my invention, and the seal at the lower extremity of the discharge or outlet pipe thereof.

In the view I have shown an embodiment of my improved siphon attachment especially designed and adapted for use in connection with the traps of plumbing systems and the like for replenishing and reestablishing the seals thereof in case they become broken by evaporation or fluctuation of air or gases, but while my present invention is particularly well adapted for application to devices of this type, I do not desire to be understood as limiting myself to the application of my improvements exclusively to devices of this class, since it will be evident that the improved siphon attachment may be applied for use in various other connections with good results.

In the View 1 represents a trap to which I have shown my improved siphon attachment applied for use, having a central depressed or downwardly extended portion 2 adapted to dip in the water in a well known way to afford a seal against the fluctuation of air or gas, and 3 represents a pipe connected with said depressed central portion 2 of the trap having its lower end so open and normally sealed by the water within said trap but adapted, in case the seal at the trap should be broken, by the evaporation of water from the trap or otherwise, to deliver. a fresh supply of water thereto under control of my improved siphon attachment, to reestablish said seal and prevent fluctuation of air and gases through the trap.

As herein illustrated, the improved si phon attachment is provided with a tank or reservoir 4: of cylindrical form, to which water from any suitable source as, for example, the house service pipe, is supplied by way of a pipe 5 under control of a valve 6, said tank or reservoir having its upper end provided with a removable closure 7 and its bottom 8 provided with a central pendent nipple 9 to which the upper end of the delivery pipe 8 is coupled in order that water may be supplied to the trap l at suitable times as will be hereinafter explained.

10 represents a nozzle extended upward from the bottom 8 of the tank or reservoir at the axis thereof open at its upper end for the receipt of water from said tank or reservoir and having a bore or passage 11 extended downwardly through the nipple 9 so as to communicate with the delivery pipe 3, and 12 represents a cylindrical shell or barrel upwardly directed from the bottom 8 of the tank or reservoir, having its upper end extended above the upper end oftthe upturned discharge nozzle 10, and provided with a closure 14, whereby a chamber or compartment 16 is produced within the up per end of said shell or band, as indicated at 16 in the drawings.

The shell or barrel 12 surrounds the discharge nozzle 10 and is concentrically positioned with respect thereto, and is of such a diameter that an annular space or passage at 17 on the drawings, constituting'the lowerpart of the chamber or compartment 16, the

lower part of said shell or barrel 12 being.

provided with ports or apertures 18 whereat water is admitted from the interior of the tank or reservoir to be supplied through said annular passage 17 to the chamber or compartment 16 and thence through the discharge nozzle 10 and delivery pipe 3 to the trap 1 when the seal is broken at the lower end of the delivery pipe by evaporation of water from the trap or otherwise.

.The chamber or compartment 16 within the upper part of the shell or barrel 12, being closed at its top, serves to imprison a certain volume of air, when the lowerend of the delivery pipe 3 is sealed at the trap, whereby it will be seen that the air thus imprisoned is caused to operate as-a seal at the discharge nozzle to prevent the supply of water from the tank or reservoir thereto, serving to depress the level of the water in the annular passage 17 below the open upper end of the nozzle and thereby prevent the discharge of water therethrough except when the sealat the lower end of the delivery pipe 3 is broken and the air permitted to escape freely from said chamber or compartment through the delivery pipe to the trap.

19 represents a vertically movable float arranged withinthe tank or reservoir 4 and having a central upwardly directed stem 20 provided with a yoke 21 having a pin 22 engaged with the slotted end 23 of the lever 24 which is embraced by said yoke, the lever being pivoted at 25 and having its opposite end 26 arranged for contact with the stem 27 of the valve 6 which controls the water supply, whereby it will be'seen that when the water level in the tank or reservoir falls and the float 19 descends the valve 6 is opened in such a manner as to admit water to said tank to replenish the supply therein'and when the normal level of the water in the tank shall have been reestablished, the rise of the float, operating through its connection, with the lever 24 will serve to withdraw the end 26 of said lever from beneath the valve stem 27 so that the valve may descend and again cut off the supply of water to the tank.

As herein shown the float is made in the form of a bell having a depending annular portion 28 surrounding the shell or barrel 12 and affording within said pendent marginal portion a central chamber 29 wherein said barrel or shell is housed or inclosed, and in the embodiment of my invention herein illustrated I have shown the im proved siphon attachmentiprovided with an outer or auxiliary shell or barrel 30 extended upwardly from the bottom 8 of the tank or reservoir concentrically around the firstmentioned barrel or shell 12 and within the central chamber 29 of the float and of such diameter relatively to said first-named shell or barrel 12 and to the pendent marginal portion 28 of the float as to afford annular concentric passages'31 and 32 through which the water flows during the siphoning action before arriving at the ports 18, the structure and arrangement of the parts being such that a certain volume of air is also imprisoned in the upper part of the chamber 29 at the termination of the siphoning action adapted, when the seal at the lower end drawn from the passages 17 and 31 to 'permit the water from the outer part. of the tank to overflow from the outermost, passage32 over the top of the outer shell or 1 barrel 30.

When the water in the tank or reservoir stands at the normal level, which in the structure shown herein, is above the. upper ends of the barrels or shells 30 and 12 and nozzle 10, the pendent marginalportion '28 of the bell-like float 19 affords a seal surrounding the outer or auxiliary shell or barrel 30 adapted to prevent the entry of air into the central chamber 29'within the float,

and in'the operation of the improved siphon attachment when the seal at the lower end of the delivery pipe 3 is broken by evaporation of water from the trap or otherwise, the air previously confined within the chamber or compartment 16 at the upper part of the shell or barrel l2 and serving to seal the upper end of the discharge nozzle 10 is permitted to escape freely through the said pipe into the trap and since the normal level of the water in the tank or reservoir is above the upper end of the discharge nozzle, water will be supplied from the tank by way of the ports 18 into the annular passage 17 between the shell or barrel 12 and the discharge nozzle and rising in said passage will overflow and be discharged through said nozzle 10 and the delivery pipe 3 into the trap to replenish the same and reestablish the seal at the lower end of the delivery plpe.

Since the chamber or compartment 16 is of comparatively small dimensions, it will be seen that the siphoning action will commence almost instantaneously upon the breakage of the seal at the lower end of the delivery pipe 3, since but little air need be discharged from the device before the supply of water to the trap is commenced, whereby the likelihood of any quantity of gas flowing through the trap is guarded against,-and

that the descent of the float 19 which, of course, commences at the instant the seal at the lower end of the delivery pipe is broken, and the outflow of air from said chamber or compartment begins, will in no way retard the commencement of the siphoning action, since such descent of the float, while affording compensation, to a certain extent, for the lowering of the level of the water in the tank. or reservoir outside the shell or barrel 12, will not compensate for the rise of the level of water in the passage 17 consequent upon the discharge of air from the chamber or compartment 16.

In the embodiment of the improved siphon attachment herein shown, after the commencement of the siphoning action, as hereinbefore described, the same will continue uninterruptedly until such time as the water abstracted from the passages 17 and 31 results in such lowering of the water level therein as will permit the flow of air from the chamber 29 through the ports 18 into chamber 16, whereupon if the seal at the lower end of the delivery pipe 3 shall have been reestablished, the siphoning action is again terminated. This operation presents especial advantages and results in material economy of water where the attachment is used in connection with traps of small size, or where comparatively little water has been abstracted from the trap when the siphoning action commences, as for example, when the breakage of the seal at the lower end of the delivery pipe is only momentary, due to oscillation or fluctuation of the water in the trap arising from differences in pressure at the opposite sides thereof. In the event of such termination of the siphoning action by flow of air from the chamber 29 through ports 18 into chamber 16 upon quick recovery of the seal at the lower end of the delivery pipe 3, the slight lowering of the float 19 will result in such opening of the valve -6 as will admit suflicient water to the tank or reservoir to quickly reestablish the normal water level therein, but in case the trap is of large dimensions, as compared with the volume of water contained in the passages 17 and 32, or in case a considerable discharge of water from the attachment is necessary for restablishing the seal at the lower end of the delivery pipe, the siphoning action is continued, sufficient air being discharged from the chamber 29 through the delivery pipe into the trap to cause the water level in the outer passage 31 to rise and overflow the outer or auxiliary barrel 30, whereupon the flow of water is resumed and caused to continue until the water level in the tank or reservoir is lowered sufliciently to permit the flow of air beneath the pendent marginal portion of the float into the chamber 29.

Having thus described my invention, what I now claim as new and desire to secure by Letters Patent is as follows:

A device of the character described having a reservoir adapted to contain a supply of water and provided with an inlet and an outlet, a seal for closing said outlet, an upwardly directed nozzle at the outlet through which the water from said reservoir is discharged, a valve controlling the inlet to the reservoir, a float actuated by variations in the water level of the reservoir controlling said valve, and having an air chamber closed at its upper part surrounding said nozzle, and a member within the chamber of said float communicating at its lower part with the reservoir, having a chamber closed at its top inclosing said nozzle and adapted to contain air affording a seal to prevent entry of water into the nozzle.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

FRANCIS K. HYDE.

Witnesses FRANK W. MOGURK, J. D. CAPLINGER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

